Current index value generation uses fixed-length vector ops, this patch adds an alterantive codegen path compatible with scalable vectors by using `LLVM::StepVectorOp`. Differential Revision: https://reviews.llvm.org/D124454
Current index value generation uses fixed-length vector ops, this patch adds an alterantive codegen path compatible with scalable vectors by using `LLVM::StepVectorOp`. Differential Revision: https://reviews.llvm.org/D124454